Wireless Charging For Mobile Devices Delivering Power over ...€¦ · Wearable Solution Wireless charging reference design –2.5 Watt Receiver Reference Board • Targeting Wearable

Powering your IoT Devices

Delivering Power

over USB type C

Wireless Charging

For Mobile Devices

USB Type-C™ and Power Delivery

Overview:

Flexible, robust

solution for power

and interconnect

Type-C & USB-PD

Architecture

ST products for

Type-C & USB-PD

Type-C & USB-PD

Solution

USB Type-C™ Pin Outs / Functions

USB 2.0

Interface

High-Speed Data Path (RX for USB 3.1, or reconfigured in

Alternate Mode)

High-Speed Data Path (TX for USB 3.1, or reconfigured in

Alternate Mode)

Cable

Ground

Cable Bus Power(from 5V up to 20V)

Sideband use

Configuration Channel

Receptacle

Two pins on the USB Type-C receptacle, CC1 and CC2, are used in the discovery, configuration and management of

connections across the USB Type-C cable

Plug

On a standard USB Type-C cable, only a single CC wire within each plug is connected through the cable to establish signal

orientation. The other CC pin is repurposed as VCONN for powering electronics

Also, only one set of USB 2.0 D+/D- wires are implemented

Enhanced ease of use

USB Type-C Power Rules

USB Type-C CC Connections

Connection

Detection and

muxes control

Connection

Detection

DFP - Source UFP - Sink

4 possible CC

configurations

• Detect attach/detach of USB ports, e.g. a DFP to a UFP

• Resolve cable orientation and twist connections to establish USB data-bus routing

• Establish DFP and UFP roles between two attached ports

• Discover and configure VBUS

• USB Power Delivery Communication

Architecture

Communication across the channel uses Biphase Mark Coding (BMC) over CC in Type C connector

Provider

Power

Source(s)

Source

port

USB Port

VBUSType A/B Plug

identification

CC

(Type-C only)

Device Policy Manager

Policy Engine

Protocol Layer

Physical LayerCable

Detection

BFSKBMC

Consumer

Power

Sink

Sink

port

USB Port

VBUSType A/B Plug

identification

CC

(Type-C only)

Device Policy Manager

Policy Engine

Protocol Layer

Physical LayerCable

Detection

BFSK BMC

VBUS

CC

Architecture and key words

Hard Coded Type-C™ and USB PD Controllers

Power

Delivery

USB

Type-C

Alternate

Mode

< 15W

15-60W60-100W

Any power

STUSB1600 STUSB47

USB Type-C controller

DUAL ROLE

Power Delivery controller

PROVIDER only

StandaloneStandalone

STUSB45

Power Delivery controller

SINK only

Standalone

STUSB1602

USB Type-C controller

with USB PD PHY

DUAL ROLE

PD stack

running in

Covering all use cases from Type-C to full feature Power Delivery

ST Products for USB Type-C & PD

Scalable offer for USB-PD controller and USB Type-C interface:

from STM32 general purpose MCU to hard-coded solution to fit

different use cases and power ratings

Large product portfolio for protection and filtering covering all the

application needs

Highly secure solution using STSAFE secure element family for

strong authentication needs

SuperSpeed

Switch

Host

USB 3.x

CTRL,

AP, etc.

US

B-C

receptacle

Power

Management

USB PD

Controller

(MCU or ASSP)

Pro

tect

ion

sUSB Type-C

Interface

(PHY)

VBUS

CC lines

Rx/Tx pairs

SBUx

D+/D- USB 2.0

USB 3.x

Authentication

Pro

tect

ion

s

ST Chipset: A flexible offer in the USB Type-C PD ecosystem

Profile 1-2-3Power Source Building Blocks

main

transformer

pulse

transformer

optocoupler

communication

Flyback

Controller:

STCH02

Rectifier

CC/CV

SEA01

High Voltage Low Voltage

Power

MOSFET

Feedback

Network

Selection

DC/DC

Post

regulation

USB PD

Interface IC

USB PD

Interface IC

• It covers profile 1-2-3 from 5W to 45W

• High Efficiency

• Low EMI design: intelligent Jitter for EMI suppression

Multi Port case:

Post regulation

for each port

Profile 4, 5Power Source Building Blocks

main

transformer

optocoupler

PFC

L6563H

Synchrounous

Rectification

SRK2001

CC/CV

SEA01

High Voltage Low Voltage

DC/DC

Post regulation

USB PD

Interface ICLLC

L6699

Power

MOSFETPower MOSFET

PFC-LLC

Integrated New

solution STCMB1

Post Regulation

1 per port

PROVIDER: STUSB47SOURCE - Autorun

CONSUMER: STUSB45SINK - Autorun

Stand-alone controllers for SOURCE and SINK applications

STUSB47 versus STUSB45

Typical power:15V / 1A

shaver

VSNK

loadexemple

CC1

CC2

VBUS

STUSB47

DC/DCAC/DC

CC1

CC2

VBUS

STUSB45

STEVAL-USBC2DP:USB Type-C to DisplayPort adapter

12

Key Features:The USB Type-C to DisplayPort Adapter expands a USB Type-C laptop screen

onto a monitor or projector equipped with DisplayPort

Based on the Alternate Mode Functional Extension of the USB Type-C & Power

Delivery to enables the DisplayPort interface

AdvantagesType-C Alternate Mode demo in a compact PCB design (5.5 x 2.3 mm)

Full ST BOM for a cost-effective solution based on Discrete AFE approach

Including the DFU feature

Key Products

STM32F072: the high-performance ARM® Cortex®-M0 32-bit RISC core operating

at up to 48 MHz frequency, high-speed embedded memories and with USB 2.0 data

interface.

LDK220: 200 mA low quiescent current and low noise LDO.

STG3684A: Low Voltage 0.5 Ohm Max Dual SPDT Switch with Break-Before-Make

ESDALC5-1BF4: Low clamping and low capacitance bidirectional single line ESD

protection

STPS0520Z: Power Schottky rectifier

X-CUBE-USB-PD: STM32 USB-PD package consisting of libraries and application

examples for STM32F0 devices acting as USB-PD controllers

AC/DC 45W USB-C PD Adapter with SR (STEVAL-USBPD45C)

Key Features

Modular design composed of Power Supply Board (PSB) STEVAL-

USBPD45P and Digital Control Board (DCB) STEVAL-USBPD45I.

Adaptive Synchronous Rectification with direct driving managed by

STM32 for better efficiency

USB Type-C and Power Delivery based on certified STM32F0 and

STUSB1602A

Supported PDOs: 5V@3A, 9V@3A, 15V@3A, [email protected]

VDM support for customized messages and features

PD 3.0 core features supportKey Products

Primary Side Controller: STCH02 (or STCH03)

High efficient and fully integrated AC-DC controller with primary CC regulation enabling, low stand-by power, high

efficiency and low EMI design of AC-DC adapters

Primary MOSFET: STF7N80K5

MDmesh™ K5 HV Power MOSFET with reduced switching losses and ultra-low gate charge for applications requiring

superior power density and high efficiency

SR MOSFET: STL40N75LF3

STripFET™ III N-Channel Power MOSFET specifically designed to minimize on-resistance and gate charge to provide

superior switching performance

USB PD and SR Controller: STM32F051K8U7

32-bit ARM CortexTM-M0 48 MHz, managing USB Power Delivery Stack (X-CUBE-USB-PD) and Synchronous

Rectification

USB Type-C Interface: STUSB1602A

Type-CTM Interface with PD PHY BMC driver, featuring high voltage protections on VBUS and CC lines, VBUS monitoring

and discharge path

ORDERING CODE:

STEVAL-USBPD45C:

STEVAL-USBPD45P +

STEVAL-USBPD45I

(STM32F051+STUSB1602A)

2.2 cm

ST Enables The Wireless Charging World

Wearable Consumer &

Industrial

Dual Mode TRx

Wearable Solutions

Wireless power TX - RX kit – 2.5 Watt wireless delivery

2.5W Receiver based on

STWLC33

STEVAL-ISB045V1

Flip Chip 2.64mm x 3.94mm

67% total system efficiency with 1mm gap

• 5V output voltage

Max. Z @ 2.5 W: 4 mm

Output Leakage: <1uA

Turnkey solution customization via GUI

Smart standby

Automatic receiver recognition

Open FOD for increased safety

Patented demodulation

2-layer PCB with optimized eBOM possible

remote coil w/ dedicated tuning

5V 1A USB input power

15

Full Bridge 2.5W Transmitter

based on STWBC-WA

28.1 mm

Wurth 760308101104

20 mm diameter coil

13.8 mm

20 mm 26 mm

STEVAL-ISB043V1

• Space saving solution: 6x10mm

1mm total thickness (PCB + BOM)

• Coil Rx –Wurth 760308101309

Wearable Solution

STWBC-WA - 2.5W transmitter Reference Board

demo PCB area 13.8x28.1mm, 20mm Coil

STWBC-WA STEVAL-ISB045V1

2-Layer PCB and single side placement

Wearable Solution

Wireless charging reference design – 2.5 Watt Transmitter Reference Board

• Targeting Wearable Applications

• USB as power source

• 5 V input, up to 0.5 A

• Configurable via API for application

customization via GUI

Wearable Solution

2.5W Receiver Reference Board

PCB active area 10x6mm, 26mm Coil

STWLC33 STEVAL-ISB043V1

3-Layer PCB and single side placement

Wearable Solution

Wireless charging reference design – 2.5 Watt Receiver Reference Board

• Targeting Wearable Applications

• USB as power source

• Operates as voltage source 5 V input, up to 0.5 A

• I2C interface for communication with host system

• Parameter and features adjustable via NVM memory

• Configurable via API for application customization via GUI

• Efficiency up to70%

Consumer & Industrial Solution

5W Transmitter and Receiver Kit

• STWBC 5W A11 STEVAL-ISB027V1

• 2-Layer PCB ad single side placement

• 3mW consumption in stand-by

• Ping and FOD always active

• STWLC30 – 5W Qi/AirFuel

• 4-Layer PCB and single-side placement

• Qi 1.2.3 and AirFuel Inductive SR1 certified

Consumer & Industrial Solution

5W Transmitter Reference Board

• 5W Qi, 1-Coil, 5V supply

• A11 requires accurate frequency control:

• Operating frequency range 110kHz – 205kHz

• Duty cycle 50%-10% @ 205kHz

Consumer & Industrial Solution

15W TRANSMITTER AND RECEIVER KIT

• STWBC-EP 15W MP-A10 STEVAL-ISB044V1

• 2-Layer PCB ad single side placement

• 17mW consumption in stand by

• Ping and FOD always active

• STWLC33 – 15W Qi/AirFuel STEVAL-ISB042V1

• 4-Layer PCB and single-side placement

• Qi 1.2.3 and AirFuel Inductive certified

• 40x40mm coil

Consumer & Industrial Solution

15W Transmitter Reference Board

Certified Wireless Charger (15W)

• IC: STWBC-EP

• MP-A10 Design, Qi 1.2.3 Certified

• Support BPP and EPP (5W and

15W)

• Foreign Object Detection (FOD)

• 5-12V input voltage range

• Half-Bridge topology

• Voltage/Frequency Control

• Graphical Interface for testing

Consumer & Industrial Solution

15W RX STWLC33 – STEVAL-ISB042V1

Qi/AirFuel Inductive Certified Wireless Receiver with Transmit capability

• Up to 15 W output power in RX mode and 5 W in TX mode

• Qi 1.2 and AirFuel inductive standard

• Integrated high efficiency synchronous rectifier

• Low drop regulator

• Total system efficiency up to 80%

• 32-bit, 32 MHz ARM Cortex microcontroller with 32 kB FW

memory, 8 kB RAM memory, 4 kB NVM for configuration

• 10-bit 8-channel A/D converter

• Up to 5 configurable GPIOs

• Integrated 5 V LDO for auxiliary features

• Precise voltage and current measurements for FOD function

• Overvoltage clamp protection

• HW FSK and ASK demodulators

• I2C interface

• CSP 3.97x2.67 mm, 400 μm pitch 52 balls

STWLC33 DUAL MODE

Multi Mode Qi/Airfuel 15W Wireless Power Receiver with Tx function

• STWLC33 15W RX (up to 5W in the demo)

• STWLC33 also works as a 3W TX (same RX coil)

• Standard Qi and Airfuel Inductive Receiver Mode

• Qi Based Transmitter Mode

STWLC33 DUAL MODE

STWLC33 Dual Mode – Retrofit example

The Phone and the Smartwatch

have been both retrofit with

STWLC33.

The phone will charge itself from

a pad and, on demand, will be

able to charge the Smartwatch

Receiver: STWLC33

5V fixed output voltage

Li-Ion direct battery charging Option

• Space saving solution: 6x10mm

1mm total thickness (PCB + BOM)

• Coil Rx – TDK WR303050-15F5-G

Max Output Power: 3W

Output Leakage: <1uA

Rx & Tx: STWLC33

Transmitter: Qi based

Trasmitted Power up to 3W

PCB Dimension 15x25mm

Coil Rx-Tx - TDK WR424245-13K2-G

Receiver: Qi and Airfuel Inductive Standards

5V fixed output Voltage – up to 5W

(due to phone limitation)

STWLC3x actual application PCB area

STWLC33 Dual Mode and STWLC30 (RX)

Dual mode

15W RX + 3W TX

80mm^2

15W, RX

61mm^2

5W, RX

49.5 mm^2

2.5W, RX

36.2 mm^2

ST vs Wireless Charging World

Complete Qi certified portfolio (TX and RX) for Consumer (up to 15W), and wearable

(up to 2.5W) applications.

Innovative solution with single chip TX and RX functions up to 15W Rx and 3W TX.

Continues improvement of single chip solution up to 20W in RX and TX mode.